FW300R1

FW300R1 Datasheet


FW250R1 and FW300R1 Power Modules dc-dc Converters 36 Vdc to 75 Vdc Input, 28 Vdc Output 250 W to 300 W

Part Datasheet
FW300R1 FW300R1 FW300R1 (pdf)
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Data Sheet March 2000

FW250R1 and FW300R1 Power Modules dc-dc Converters 36 Vdc to 75 Vdc Input, 28 Vdc Output 250 W to 300 W

The FW250R1 and FW300R1 Power Modules use advanced, surface-mount technology and deliver high-quality, compact, dc-dc conversion at an economical price.
s Redundant and distributed power architectures s Computer equipment s Communications equipment

Options
s Heat sinks available for extended operation
s Size mm x mm x mm in. x in. x in.
s Wide input voltage range s High typical s Parallel operation with load sharing s Output voltage set-point adjustment trim s Overtemperature protection s Synchronization s Power good signal s Output current monitor s Output overvoltage and overcurrent protection s Constant frequency s Case ground pin s Input-to-output isolation s Remote sense s Remote on/off s ISO* 9001 manufacturing facilities s UL†1950 Recognized, C22.2 No. 950-95
and VDE § 0805 EN60950, IEC950 Licensed s CE mark meets 73/23/EEC and 93/68/EEC directives**

The FW250R1 and FW300R1 Power Modules are dc-dc converters that operate over an input voltage range of 36 Vdc to 75 Vdc and provide a precisely regulated dc output. The outputs are fully isolated from the inputs, allowing versatile polarity and grounding connections. The modules have maximum power ratings from 250 W to 300 W at a typical full-load of

Two or more modules may be paralleled with forced load sharing for redundant or enhanced power applications. The package, which mounts on a printed-circuit board, accommodates a heat sink for high-temperature applications.
* ISO is a registered trademark of the International Organization for Standardization. † UL is a registered trademark of Underwriters Laboratories, Inc. CSA is a registered trademark of Canadian Standards Assn. § VDE is a trademark of Verband Deutscher Elektrotechniker e.V. ** This product is intended for integration into end-use equipment. All the required procedures for CE marking of end-use equipment should
be followed. The CE mark is placed on selected products.

FW250R1 and FW300R1 Power Modules dc-dc Converters 36 Vdc to 75 Vdc Input, 28 Vdc Output 250 W to 300 W

Data Sheet March 2000

Absolute Maximum Ratings

Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are absolute stress ratings only. Functional operation of the device is not implied at these or any other conditions in excess of those given in the operations sections of the data sheet. Exposure to absolute maximum ratings for extended periods can adversely affect device reliability.

Parameter

Unit

Input Voltage Continuous Transient 100 ms

VI, trans

I/O Isolation Voltage for 1 minute
1500

Operating Case Temperature

See Thermal Considerations section and

Figure

Storage Temperature

Tstg

Electrical

Unless otherwise indicated, apply over all operating input voltage, resistive load, and temperature conditions.

Table Input

Parameter Operating Input Voltage Maximum Input Current VI = 0 V to 75 V :

FW250R1 FW300R1 Inrush Transient Input Current, Peak-to-peak 5 Hz to 20 MHz, 12 µH source impedance see Figure Input Ripple Rejection 120 Hz

Unit

II, max

II, max
mAp-p

Fusing Considerations

CAUTION This power module is not internally fused. An input line fuse must always be used.

This encapsulated power module can be used in a wide variety of applications, ranging from simple stand-alone operation to an integrated part of a sophisticated power architecture. To preserve maximum internal fusing is not included however, to achieve maximum safety and system protection, always use an input line fuse. The safety agencies require a normal-blow fuse with a maximum rating of 20 A see Safety Considerations section . Based on the information provided in this data sheet on inrush energy and maximum dc input current, the same type of fuse with a lower rating can be used. Refer to the fuse manufacturer’s data for further information.

Tyco Electronics Corp..
The temperature at this location should not exceed 100 °C. The maximum case temperature can be limited to a lower value for extremely high reliability. The output power of the module should not exceed the rated power for the module as listed in the Ordering Information table.

For additional information about these modules, refer to the Thermal Management for FC- and FW-Series 250 W Board-Mounted Power Modules Technical Note TN96-009EPS .

POWER DISSIPATION, PD W
m/s 800 ft./min.
m/s 700 ft./min.
m/s 600 ft./min.
m/s 500 ft./min.
m/s 400 ft./min.
m/s 300 ft./min. m/s 200 ft./min.
m/s 100 ft./min. 30
m/s 20 ft./min. NAT. CONV.
10 20 30 40 50 60 70 80 90 100

LOCAL AMBIENT TEMPERATURE, TA °C
8-1314 C

Figure Convection Power Derating with No Heat Sink Along Length Longitudinal Orientation

Heat Transfer Without Heat Sinks

Derating curves for forced-air cooling without a heat sink are shown in Figures 19 and These curves can be used to determine the appropriate for a given set of operating conditions. For example, if the unit with along its length dissipates 20 W of heat, the correct in a 40 °C environment is m/s 200 ft./min. .

Tyco Electronics Corp..

FW250R1 and FW300R1 Power Modules dc-dc Converters 36 Vdc to 75 Vdc Input, 28 Vdc Output 250 W to 300 W

Data Sheet March 2000

Thermal Considerations continued

Heat Transfer with Heat Sinks

The power modules have through-threaded, M3 x mounting holes, which enable heat sinks or cold plates to be attached to the module. The mounting torque must not exceed N-m 5 in.-lb. . For the screw attachment from the pin side, the recommended hole size on the customer’s PWB around the mounting holes is ± inches. If a larger hole is used, the mounting torque from the pin side must not exceed N-m in.-lb. .

Thermal derating with heat sinks is expressed by using the overall thermal resistance of the module. Total module thermal resistance is as the maximum case temperature rise max divided by the module power dissipation PD :
max -------P-----D--------

TC TA ---------P-----D----------

The location to measure case temperature TC is shown in Figure Case-to-ambient thermal resistance vs. for various heat sink is shown in Figures 21 and These curves were obtained by experimental testing of heat sinks, which are offered in the product catalog.

CASE-TO-AMBIENT THERMAL RESISTANCE, °C/W
1/2 IN. HEAT SINK 1 IN. HEAT SINK 1/2 IN. HEAT SINK 1/4 IN. HEAT SINK

NO HEAT SINK

AIR VELOCITY, m/s ft./min.
500 600
8-1321 C

Figure Case-to-Ambient Thermal Resistance Curves Transverse Orientation

CASE-TO-AMBIENT THERMAL RESISTANCE, °C/W
1/2 IN. HEAT SINK
1 IN. HEAT SINK
1/2 IN. HEAT SINK
1/4 IN. HEAT SINK

NO HEAT SINK
500 600
Ordering Information

Table Device Codes

Input Voltage 48 V 48 V

Output Voltage 28 V 28 V

Output Power 250 W 300 W

Device Code FW250R1 FW300R1
8-1650 C

Comcode 107679029 107430332

Tyco Electronics Corp..

FW250R1 and FW300R1 Power Modules dc-dc Converters 36 Vdc to 75 Vdc Input, 28 Vdc Output 250 W to 300 W

Data Sheet March 2000
Ordering Information continued

Table Device Accessories

Accessory 1/4 in. transverse kit heat sink, thermal pad, and screws 1/4 in. longitudinal kit heat sink, thermal pad, and screws 1/2 in. transverse kit heat sink, thermal pad, and screws 1/2 in. longitudinal kit heat sink, thermal pad, and screws 1 in. transverse kit heat sink, thermal pad, and screws 1 in. longitudinal kit heat sink, thermal pad, and screws 1/2 in. transverse kit heat sink, thermal pad, and screws 1/2 in. longitudinal kit heat sink, thermal pad, and screws

Dimension are in millimeters and inches .

Comcode
847308335 847308327 847308350 847308343 847308376 847308368 847308392 847308384
1/4 IN. 1/2 IN.
1 IN. 1/2 IN.
1/4 IN.
1/2 IN.
1 IN.
1/2 IN.
8-2830 C

Figure Longitudinal Heat Sink

Figure Transverse Heat Sink
8-2831 C

Tyco Electronics Corp..

Data Sheet March 2000

Notes

FW250R1 and FW300R1 Power Modules dc-dc Converters 36 Vdc to 75 Vdc Input, 28 Vdc Output 250 W to 300 W

Tyco Electronics Corp..

FW250R1 and FW300R1 Power Modules dc-dc Converters 36 Vdc to 75 Vdc Input, 28 Vdc Output 250 W to 300 W

Data Sheet March 2000

Tyco Electronics Power Systems, Inc.
3000 Skyline Drive, Mesquite, TX 75149, USA +1-800-526-7819 FAX +1-888-315-5182 Outside U.S.A. +1-972-284-2626, FAX +1-972-284-2900

Tyco Electronics Corportation reserves the right to make changes to the product s or information contained herein without notice. No liability is assumed as a result of their use or application. No rights under any patent accompany the sale of any such product s or information.
2001 Tyco Electronics Corporation, Harrisburg, PA. All International Rights Reserved. Printed in U.S.A.

March 2000 DS99-324EPS Replaces DS97-515EPS

Printed on Recycled Paper
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Datasheet ID: FW300R1 516324